diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index 9bb26aa..62585e9 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -415,7 +415,7 @@
 ###########################################################################
 
 CFLAGS = -Iproto $(DEFINES) -pipe -march=$(ARCH) -Wall
-CXXFLAGS = -std=c++11
+CXXFLAGS = -std=gnu++11
 WINDRES_FLAGS = --preprocessor="$(WINDRES_CC) -E -xc" -DRC_INVOKED
 EXTRA_LIBS =